Removable handle for file or other implement



Jan. 7, 1941. O J. G. GUTTMANN 2,228,053

REMOVABLE HANDLE FOR FILE OR OTHER IMPLEMENT Filed March 5, 1938 1779227202 fixe /f l/rh-z/mw.

Patented Jan. 7, 1941 UNITED STATES PATENT OFFICE REMOVABLE HANDLE FOR FILE OR OTHER IMPLEMENT v Joseph G. Guttmann, St. Paul, Minn.

Application March 5, 1938, Serial No. 194,097

6 Claims.

dle' which .is readily removable from said shank portion. In using such implements, particularly files, it is often desirable to: change the file for difierent' operations. It'is desirable therefore, to-have a handle in which different files may be inserted and by means-of which they can be securely held for operation. It is also desirable to'have such a handle which is simple in construction, convenient andcomfortable for use and which'canbe very quickly changed from one implement toanother.

It is an object of this invention therefore, to provide a removable handle of simple and efli cient construction-which canbe very easily and quickly removed from one implement and placed upon another.

It is a further object of the invention to providea removable handle for a file or'other im-" plement having a shank portion comprising sections swingable relatively to each other and having clamping means for engaging and clamping the shank of an implement whensaid members are brought to closed position together with means 'forholding said members. in closed position.

It is more specifically an object-oi the invention to provide a handle comprising oppositely disposed portions forming complemental parts of a handle, said portions having yielding clamping means therein separable to receive the shank of an implement therebetween .when said portions are swung to-open position-and arranged to clamp said shank when said portions are swung to closed position and'means for holding said portions in closed. position.

These and other objects and advantages of the invention will. be fully set forth in the following description madein connection with theaccoma panying drawing in which like reference characters refer'to similarpartsthroughout the several views and in which:

Fig. 1 is a view in side elevation of the handle forming the present invention with a file therein;

Fig. 2 is a central vertical section taken through the handle shown in Fig. 1;

Fig. 3 is a view similar to Fig. 2 showing the end of the handle removed and the parts in separated position;

Fig. 4 is a central vertical section through the cap member used;

Fig. 5 is a view in end elevation of the handle as seen from the right of Fig. 1;

Fig. 6 is a verticalsection taken on line 8- 5 of Fig. 2 as indicated by'the arrows;

Fig-7 is a vertical section taken on line 1-4 of Fig; 2 as indicatedby the arrows; and

Fig.8 is a vertical section taken on line 8--8 of'Fig. -2 as indicated by the" arrows.

Referring to the drawing a handle structure is shown comprisingoprpositelydisposedcasings It and I I; Casings liland Hiare each of substantiallyf'semi+cylindrical form or of trough-shape and each has projecting inwardlyadjacent their smaller or :inner ends ateach sidethereof lugs Mia and Her... Thelugslli'a an'd Ha are arranged inroverlapping engagementand there'is'thus a pairiof ;the'se overlappingt lugs. at each side of members: lfl and .l Lt Said: pairs of: overlapping lugs are*each hingedlyiconnected together by rivets 12, 'said rivets thus forming the hinge pintles. with a recesslllbsand l lb respectivelyat their inner ends, theserirecesses being' oppositely disposed: and thus cooperating -to form a substan-' tially'circular;opening at #the .inner 'end" of said Members] El and. l l I are each provided members. Member It] is offset adjacent its'frec' endto form-a shortledge lllcrand is then bent substantially'at a right angle towardmember': H to form-an endportion Hid, said portion having substantially; parallel sides "and a semi-circular end-asshown-in Fig.'8.' A nut 13 is secured to therinner sidebf :portion 'lfldin any suitable manner--:as by welding. The member! l is also offset-adjacent its free end'toform a short ledge H'c an'dtis then bent at right angle toward member-'lB'to form the'end portion lid; which portion also has parallel sides and-a semi-circular end as: shown in Fig.8. Portion-l Id is provided with anaaperturelleadapted to "align: with the threaded bore. in nut 63 when members I!) and ll-arein closed position-ass-hown invFigs. 1 and 2. Platesbracketsvl'l are secured -to the inner sides of member H1 and I I in anysuitable manner as by welding and the samethave inwardly extending portions orflanges l4a. Clamping means which as" illustrated, comprise blocks iii of rubber or rubber composition, are disposed and secured in members l0 and II between flanges Ma and the inner ends of said members. It will be noted that the inner surfaces of blocks I5 are disposed substantially in the planes of the longitudinal edges of members I0 and H A cap member I6 is provided which is generally of semispherical form and has a central counter-sunk portion Ilia. Said cap also is provided with a plurality of radially extending and circumferentially spaced ribs l6b illustrated as being pressed nut I3.

outwardly from the material of cap I6. A screw I! has a slotted head fitting in the counter-sunk portion I60; and said screw is preferably rigidly secured in cap l6 as by welding or soldering. Preferably the head of screw I1 is covered with a thin layer of wax, paint, metal or other material. The diameter of cap I6 is such as to fit over the ledges I and H0 when members. I9 and II are in closed position so that the outer surface of said cap extends substantially flush with the adjacent surfaces of members It] and I l.

When a file or other implement is to be held in said handle, cap I6 will be removed and portions I0 and l I will be swung apart as shown in Fig. 3. The shank of the file or other implement, which shank is usually of angular shape in cross section, is inserted through the opening formed by the recesses lb and III) and is disposed between the blocks I 5. The shank will thus extend along the longitudinal center lines of said blocks. The members I0 and II are now swung together and the shank of the implement such as the shank I8a of the file I8 shown in Fig. 1, will be very tightly clamped between blocks I5. Blocks I5 will yield somewhat to surround the said shank. With the portions I0 and II in closed position the cap is now brought into position with screw II axially aligned with opening Ile. Screw I1 is then passed through opening I Ie and screwed into the The screw is turned until cap I6 engages the shoulders of ledges I00 and Ho and the handle is then in closed position as shown in Figs. 1 and 2. It will be obvious that to again open the handle or remove the tool that cap I6 and screw I! will be removed by turning cap I6 so that parts I0 and II can again be separated. The file I8 or other implement is very securely held in the handle and can be operated as it were rigidly and permanently secured to the handle.

From the above description it will be seen that I have produced a very simple and efiicient removable handle by means of which various files or other implements can be held. It is easy to change from one implement to the other and this can be done very quickly. The handle is of very convenient and comfortable form and the ribs I6b on the end thereof will assist in gripping the same, and in turning .cap I6 to remove the cap. The handle is preferably nicely finished or coated on its exterior. The structure is very rugged and can be easily and inexpensively made. The de vice has been amply demonstrated in actual practice and found to be very successful and efficient.

It will, of course, be understood that various changes may be made in the form, details, arrangement and proportions of the parts, without departing from the scope of applicants invention, which generally stated, consists in a device capable of carrying out the objects above set forth, in the parts and combinations of parts disclosed and defined in the appended claims.

What is claimed is:-

1. A shank comprising a pair of oppositely disposed members shaped to form complemental parts of a substantially cylindrical handle for receiving a tool, a hinge connecting the ends of said members adapted to receive said tool, yielding clamping means carried in each of said members adapted to be brought into clamping position when said members are in closed position, means for holding said members in closed position and a cap engaging the opposite ends of said members and forming the end of said handle.

2. A handle for a file or other article having a shank comprising a pair of oppositely disposed casings adapted to form complemental sides of a handle, a hinge connecting said casings together adjacent the ends thereof adapted to receive said file, said members having registering slots therein forming an opening centrally through the inner end thereof, yielding means carried in said casings adjacent the inner ends thereof adapted to be brought into clamping position when said members are brought together, said members having overlapping portions at their outer ends and means passing through said portions for holding said members together to clamp the shank of a file or other article extending through said opening and between said yielding means.

3. The structure set forth in claim 2 and a substantially semi-Spherical cap engaging the outer ends of said members and forming the end of said handle.

4. The structure set forth in claim 2, said last mentioned means comprising a screw threaded into one of said portions and a cap engaging the ends of said casings to which said screw is secured.

5. A handle for a file or other article having a shank comprising a pair of oppositely disposed casings substantially semi-cylindrical in form, a hinge connecting said casings adjacent their inner ends, yielding members disposed in said casings adapted to be separated when said casings are swung apart and to be brought into close proximity to clamp said shank therebetween when said .casings are in closed position, means for holding said means in closed position and a substantially semi-spherical cap adapted to fit over the other ends of said casings and be substantially flush therewith.

6. A handle for a file or other article having a shank comprising a pair of oppositely disposed casings substantially semi-cylindrical in form, a hinge connecting said casings adjacent their inner ends, yielding members disposed in said casings adapted to be separated when said casings are swung apart and to be brought into close proximity to clamp said shank therebetween when said casings are in closed position, a substantially semi-spherical cap adapted to fit over the other ends of said casings and be substantially flush therewith and means .carried by said cap engaging said casings for holding the same in closed position.

JOSEPH G. GU'ITMANN. 

